org.antlr.v4.codegen.target

Class GoTarget

java.lang.Object

org.antlr.v4.codegen.Target

org.antlr.v4.codegen.target.GoTarget

public class GoTarget
extends Target

Author:

Peter Boyer

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	GoTarget.JavaStringRenderer

Field Summary

Fields inherited from class org.antlr.v4.codegen.Target

gen, targetCharValueEscape

Constructor Summary

Constructors

Constructor and Description
GoTarget(CodeGenerator gen)

Method Summary

Methods

Modifier and Type	Method and Description
protected void	addBadWords()
protected void	appendUnicodeEscapedCodePoint(int codePoint, StringBuilder sb) Escape the Unicode code point appropriately for this language and append the escaped value to sb.
String	encodeIntAsCharEscape(int v) Assume 16-bit char
protected void	genFile(Grammar g, org.stringtemplate.v4.ST outputFileST, String fileName)
Set<String>	getBadWords()
String	getBaseListenerFileName(boolean header) A given grammar T, return a blank listener implementation such as TBaseListener.java, if we're using the Java target.
String	getBaseVisitorFileName(boolean header) A given grammar T, return a blank listener implementation such as TBaseListener.java, if we're using the Java target.
int	getInlineTestSetWordSize() How many bits should be used to do inline token type tests? Java assumes a 64-bit word for bitsets.
String	getListenerFileName(boolean header) A given grammar T, return the listener name such as TListener.java, if we're using the Java target.
String	getRecognizerFileName(boolean header) Generate TParser.java and TLexer.java from T.g4 if combined, else just use T.java as output regardless of type.
int	getSerializedATNSegmentLimit() Gets the maximum number of 16-bit unsigned integers that can be encoded in a single segment of the serialized ATN.
String	getVersion() ANTLR tool should check output templates / target are compatible with tool code generation.
String	getVisitorFileName(boolean header) A given grammar T, return the visitor name such as TVisitor.java, if we're using the Java target.
protected org.stringtemplate.v4.STGroup	loadTemplates()
protected boolean	visibleGrammarSymbolCausesIssueInGeneratedCode(GrammarAST idNode)

Methods inherited from class org.antlr.v4.codegen.Target

getAltLabelContextStructName, getCodeGenerator, getElementListName, getElementName, getImplicitRuleLabel, getImplicitSetLabel, getImplicitTokenLabel, getLanguage, getListLabel, getLoopCounter, getLoopLabel, getRuleFunctionContextStructName, getRuleFunctionContextStructName, getTargetStringLiteralFromANTLRStringLiteral, getTargetStringLiteralFromString, getTargetStringLiteralFromString, getTemplates, getTokenTypeAsTargetLabel, getTokenTypesAsTargetLabels, grammarSymbolCausesIssueInGeneratedCode, needsHeader, supportsOverloadedMethods, templatesExist, wantsBaseListener, wantsBaseVisitor

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GoTarget

public GoTarget(CodeGenerator gen)

Method Detail

getVersion

public String getVersion()

Description copied from class: Target

ANTLR tool should check output templates / target are compatible with tool code generation. For now, a simple string match used on x.y of x.y.z scheme. We use a method to avoid mismatches between a template called VERSION. This value is checked against Tool.VERSION during load of templates. This additional method forces all targets 4.3 and beyond to add this method.

Specified by:

getVersion in class Target

getBadWords

public Set<String> getBadWords()

addBadWords

protected void addBadWords()

genFile

protected void genFile(Grammar g,
           org.stringtemplate.v4.ST outputFileST,
           String fileName)

Overrides:

genFile in class Target

encodeIntAsCharEscape

public String encodeIntAsCharEscape(int v)

Description copied from class: Target

Assume 16-bit char

Overrides:

encodeIntAsCharEscape in class Target

getSerializedATNSegmentLimit

public int getSerializedATNSegmentLimit()

Description copied from class: Target

Gets the maximum number of 16-bit unsigned integers that can be encoded in a single segment of the serialized ATN.

Overrides:

getSerializedATNSegmentLimit in class Target

Returns:

the serialized ATN segment limit

See Also:

SerializedATN.getSegments()

getInlineTestSetWordSize

public int getInlineTestSetWordSize()

Description copied from class: Target

How many bits should be used to do inline token type tests? Java assumes a 64-bit word for bitsets. Must be a valid wordsize for your target like 8, 16, 32, 64, etc...

Overrides:

getInlineTestSetWordSize in class Target

visibleGrammarSymbolCausesIssueInGeneratedCode

protected boolean visibleGrammarSymbolCausesIssueInGeneratedCode(GrammarAST idNode)

Specified by:

visibleGrammarSymbolCausesIssueInGeneratedCode in class Target

loadTemplates

protected org.stringtemplate.v4.STGroup loadTemplates()

Overrides:

loadTemplates in class Target

getRecognizerFileName

public String getRecognizerFileName(boolean header)

Description copied from class: Target

Generate TParser.java and TLexer.java from T.g4 if combined, else just use T.java as output regardless of type.

Overrides:

getRecognizerFileName in class Target

getListenerFileName

public String getListenerFileName(boolean header)

A given grammar T, return the listener name such as TListener.java, if we're using the Java target.

Overrides:

getListenerFileName in class Target

getVisitorFileName

public String getVisitorFileName(boolean header)

A given grammar T, return the visitor name such as TVisitor.java, if we're using the Java target.

Overrides:

getVisitorFileName in class Target

getBaseListenerFileName

public String getBaseListenerFileName(boolean header)

A given grammar T, return a blank listener implementation such as TBaseListener.java, if we're using the Java target.

Overrides:

getBaseListenerFileName in class Target

getBaseVisitorFileName

public String getBaseVisitorFileName(boolean header)

A given grammar T, return a blank listener implementation such as TBaseListener.java, if we're using the Java target.

Overrides:

getBaseVisitorFileName in class Target

appendUnicodeEscapedCodePoint

protected void appendUnicodeEscapedCodePoint(int codePoint,
                                 StringBuilder sb)

Description copied from class: Target

Escape the Unicode code point appropriately for this language and append the escaped value to sb.

Specified by:

appendUnicodeEscapedCodePoint in class Target